JP4223203B2 - Rotating optical filter device - Google Patents

Rotating optical filter device Download PDF

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Publication number
JP4223203B2
JP4223203B2 JP2001239465A JP2001239465A JP4223203B2 JP 4223203 B2 JP4223203 B2 JP 4223203B2 JP 2001239465 A JP2001239465 A JP 2001239465A JP 2001239465 A JP2001239465 A JP 2001239465A JP 4223203 B2 JP4223203 B2 JP 4223203B2
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Prior art keywords
optical filter
optical
optical filters
support
holding member
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JP2001239465A
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Japanese (ja)
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JP2003050309A (en
Inventor
貴志 渡辺
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Fujinon Corp
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Fujinon Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、投写型画像表示装置の照明光学系等において、例えば、照明光の色を周期的に変化させるために光路内に配置される回転光学フィルタ装置に関するものである。
【0002】
【従来の技術】
この種の回転光学フィルタ装置としては、近年、画像表示素子により照明光を光変調し、それを拡大投映する投写型カラー画像表示装置の照明光学系において、色分解手段として用いられるカラーホイール装置が知られてきている。カラーホイール装置は従来の3板式の色分解光学系に比べ軽量小型で、コスト的にも優れた色分解手段である。
【0003】
このようなカラーホイール装置としては、特開平10-48542の公開特許公報に記載された方式(以下「バルザス方式」と称する)のものが知られている。バルザス方式のカラーホイール装置は、回転軸に軸支された円板状の支持体の外周部分に、光透過性の円環状領域を形成する光学フィルタが接着剤で固着されている点、および光学フィルタの円環状領域が保持ウェブのような固定部材で中断されていない点を特徴とする。
【0004】
光学フィルタの円環状領域が保持ウェブのような固定部材で中断されていないことで、次のような利点がある。すなわち、従来、光学フィルタの円環状領域を保持ウェブやスポークといった固定部材で中断させたカラーホイール装置が知られているが、このような従来装置の場合、保持ウェブやスポークにより光学フィルタの円環状領域がかなりの幅で中断されるため、その中断された部分での光損失が大きく、全体的に光透過効率が低下してしまう。これに対し、光学フィルタの円環状領域が中断されていないバルザス方式では、光損失がほとんど生じない。
【0005】
【発明が解決しようとする課題】
しかしながら、このようなバルザス方式のカラーホイール装置は、光学フィルタの円環状領域が保持ウェブのような固定部材で中断されていないという点において、以下のような問題を生じる。
【0006】
すなわち、光学フィルタの円環状領域は、通常、複数の領域に分割され、分割されたそれぞれの領域には、相異なる光学フィルタが配置される。したがって、領域が中断されないバルザス方式では、複数の光学フィルタが相隣接するもの同士の間に隙間が無い状態、すなわち密着した状態で配置される場合がある。このため、駆動時の回転力や振動、あるいは温度変化に伴う光学フィルタの熱膨張などにより、相隣接する光学フィルタ同士が互いに押圧する状態となってしまい、光学フィルタが破損する虞がある。
【0007】
このような光学フィルタの破損を防止するには、相隣接する光学フィルタ同士を離間させれば良いが、離間距離が大きくなれば光損失が増大してしまう。このため、光損失をできるだけ抑制しつつ、相隣接する光学フィルタ同士が悪影響を及ぼし合わない程度に、各光学フィルタを微小距離離間させることが望まれるが、複数の光学フィルタをそれぞれ微小距離離間させた状態で精度良く配置して支持体に固定することは技術的に困難であった。
【0008】
本発明はこのような事情に鑑みなされたもので、相隣接する光学フィルタ同士を微小距離離間させた状態で精度良く配置することを容易に行なうことができ、光学フィルタが破損する可能性を低減しつつ、光学フィルタ間の光損失も抑制し得る回転光学フィルタ装置を提供することを目的とする。
【0009】
【課題を解決するための手段】
前記課題を解決するため本発明の回転光学フィルタ装置は、回転軸に直交する支持面を有する該回転軸に軸支された支持体と、前記支持面上で前記回転軸の周方向に配列され支持された複数の光学フィルタとを備えた回転光学フィルタ装置において、前記複数の光学フィルタの相隣接する2つの光学フィルタ間において該両光学フィルタに共に当接した状態で介在し、該両光学フィルタ間に細隙を確保する隔壁片を有すると共に、前記複数の光学フィルタを、前記細隙が前記隔壁片によって確保された状態で前記支持面との間に保持し、前記支持体および前記複数の光学フィルタと共に回転せしめられる保持部材を備えてなることを特徴とするものである。
【0010】
前記保持部材は、回転軸に挿通される孔部が形成された、回転軸に直交する基部を備えたものとすることができる。
前記保持部材は隔壁片と基部とが一体に板状部材から形成され、隔壁片は基部に対して略垂直に立ち上がるように板状部材の一部が折り曲げられてなるものとすることができる。
【0011】
なお、前記「回転軸」とは、回転力が伝達されるロータや、支持体の軸部など回転中心となる部分を意味し、さらには仮想的な回転の軸線をも含むものである。また、前記「回転軸に軸支される」とは、ロータや、支持体の軸部など回転中心となる部分に直接軸支される場合や、他の部材を介して間接的にこれらの回転軸に軸支される場合を意味する。
【0012】
【発明の実施の形態】
以下、本発明にかかる回転光学フィルタ装置の実施形態について図面を参照しつつ説明する。図1は、本発明の一実施形態にかかる回転光学フィルタ装置の概要を一部を破断して示す図であり、図2は、その部分断面図である。なお、図2では、図1に示す装置全体のうち上半分のみを図示しており、対称的な構成を有する下半分の図示は省略している。
【0013】
この実施形態装置は、例えば、投写型カラー画像表示装置において用いられる透過型のカラーホイール装置1であり、図示せぬ電動モータ等から回転力が伝達されるロータ10、このロータ10に軸支された支持体20、図示せぬ光源からの照明光を各色光成分に分解して図示せぬ画像表示素子等に導く光学フィルタ30、および光学フィルタ30を保持する保持部材40を備えている。
【0014】
支持体20は、ロータ10に一体的に固定される円筒状の軸部21と、軸部21の外周部からロータ10の軸線11の半径方向外側に伸展するディスク状の支持部22とからなる。なお、支持体20は、軽金属、例えばアルミニュームやその合金等により形成される。
【0015】
光学フィルタ30は、照明光のうち赤色光成分のみを透過する赤色光フィルタ31、緑色光成分のみを透過する緑色光フィルタ32、および青色光成分のみを透過する青色光フィルタ33の3種類から構成されている。各色のフィルタ31、32、33は、それぞれガラス材料で形成され、また、円環がその中心から放射状に3等分された扇形状の形状を有しており、軸線11の周方向に配列された状態で支持体20および保持部材40に固着される。なお、各フィルタ31、32、33の光学特性は、3原色光のうち各々1色の光束のみを反射または透過するダイクロイック膜を表面に形成するなど、一般に知られた方法により得られるものである。
【0016】
図3に、光学フィルタ30を保持した保持部材40を示してある。この図3または図2に示すように、保持部材40は、支持体20の軸部21の外径と略等しい大きさの内径を有する孔部41が中心部に形成された、軸線11の半径方向外側に伸展するディスク状の基部42を備え、孔部41が支持体20の軸部21に挿通されることにより、軸線11を中心に回転可能に支持体20の軸部21に支持されるように構成されている。
【0017】
また、基部42の外周部には、該外周部を周方向に3等分する各位置に、基部41に対して略垂直に立ち上げられた隔壁片43がそれぞれ設けられている。保持部材40は、例えば、厚さ0.1mmのアルミニューム板から基部42と隔壁片43とが一体に打ち抜き形成されると共に、隔壁片43が基部42に対して略垂直に折り曲げられて形成される。
【0018】
隔壁片43は、相隣接する光学フィルタ30の周方向端部間において、両者の端部に共に当接した状態で介在し、両者の端部間に径方向内周端から外周端に延びる細隙50を確保する。細隙50の最小間隔は板厚と略同じ0.1mmとなり、3枚の光学フィルタ30は、相隣接する2つの光学フィルタ30間にそれぞれ0.1mmの離間距離が確保され、軸線11の周方向に配列された状態で、保持部材40および支持体20に固着される。なお、細隙50の幅は、光損失の影響を抑制できる0.4mm程度以下に設定することが好ましい。
【0019】
光学フィルタ30の保持部材40および支持体20への固着は、エポキシ系の接着剤等を用いてなされる。具体的には、例えば、光学フィルタ30および保持部材40を位置決めして仮保持する受け治具に保持部材40を載せ、基部41に接着剤を塗布した後、3枚の光学フィルタ30を隔壁片43に当接させながら保持部材40の上に周方向に配列して重ね、さらにその上に重りを載せて接着剤を硬化させる方法により3枚の光学フィルタ30と保持部材40とを接着する。次に、保持部材40および支持体20を位置決めして仮保持する受け治具に支持体20を載せ、支持部22の支持面23に接着剤を塗布し、その上に光学フィルタ30が接着された保持部材40を光学フィルタを下にして重ね、さらにその上に重りを載せて接着剤を硬化させる方法により3枚の光学フィルタ30と支持体20とを接着する。
【0020】
このような接着方法をとることにより、3枚の光学フィルタ30の相隣接する2つの光学フィルタ30の各々を微小距離離間させた状態で精度良く配置して、支持体20に固着することが容易に行なえる。
【0021】
以上のように構成されたカラーホイール装置1は、ロータ10の回転により、支持体20、光学フィルタ30、保持部材40が一体的に回転せしめられ、光源から光学フィルタ30に照射された照明光を時分割で各色光成分に分解する。
【0022】
以上、本発明の回転光学フィルタ装置にかかる一実施形態について説明したが、本発明の回転光学フィルタ装置は前述した実施形態に限られず、種々の態様の変更が可能である。
例えば、前記実施形態では、光学フィルタを保持部材と支持体にそれぞれ接着剤で固着しているが、光学フィルタや保持部材、支持体の材質によっては、熱融着や熔着等により固着することも可能である。
【0023】
また、光学フィルタは、保持部材または支持体の一方のみに固着する態様をとることも可能である。例えば、光学フィルタを保持部材のみに固着して、支持体には保持部材または別の押圧部材により、圧着して支持せしめることが可能であり、このような圧着態様としては、本願と同日付けで本出願人により開示された特許出願に係る明細書中に詳細に記載されている。
【0024】
また、前記実施形態は、透過型のカラーホイール装置であるが、本発明の回転光学フィルタ装置としては、3原色に対応する3つの領域に3原色光のうち各々所望の1色の光束のみを各々反射するダイクロイック膜が形成された反射型のカラーホイール装置であってもよい。
【0025】
また、本発明においてカラーホイール装置は、各原色光を透過または反射させる領域が3等分されているものに限られない。いずれかの領域が広いまたは狭いものや3原色以外の色光、例えば白色光や3原色のうちの2色を混合した色光を透過または反射させるような領域が形成されたものとされていてもよい。
【0026】
さらに本発明の回転光学フィルタ装置は、カラーホイール装置に適用が限定されるものではない。色光に分解するのではなく光源からの光の明るさなど他の要素を変化させる光学フィルタを備えた装置にも適用が可能である。
【0027】
【発明の効果】
以上説明したように、本発明の回転光学フィルタ装置では、回転軸の周方向に配列される複数の光学フィルタが、保持部材の隔壁片により相隣接する2つの光学フィルタ間に細隙が形成された状態で保持部材によって保持され、支持体に支持せしめられる。
【0028】
したがって、本発明の回転光学フィルタ装置によれば、保持部材を用いることにより、相隣接する光学フィルタ同士を微小距離離間させた状態で精度良く配置することを容易に行うことができる。そして、これにより、光学フィルタが破損する可能性を低減しつつ、光学フィルタ間の光損失も抑制することが可能となる。
【図面の簡単な説明】
【図1】本発明の一実施形態にかかる回転光学フィルタ装置の要部構成を示す正面図
【図2】図1に示す装置の部分断面図
【図3】光学フィルタが固着された保持部材を示す図
【符号の説明】
1 カラーホイール装置
10 ロータ
11 軸線
20 支持体
21 支持体の軸部
22 支持部
23 支持面
30 光学フィルタ
31 赤色光フィルタ
32 緑色光フィルタ
33 青色光フィルタ
40 保持部材
41 孔部
42 基部
43 隔壁片
50 細隙
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotating optical filter device arranged in an optical path in order to periodically change the color of illumination light, for example, in an illumination optical system of a projection type image display apparatus.
[0002]
[Prior art]
As this type of rotating optical filter device, in recent years, there is a color wheel device used as a color separation means in an illumination optical system of a projection type color image display device that optically modulates illumination light by an image display element and enlarges and projects it. It has been known. The color wheel device is a color separation means that is lighter and smaller than a conventional three-plate color separation optical system and is superior in cost.
[0003]
As such a color wheel device, a system described in Japanese Patent Application Laid-Open No. 10-48542 (hereinafter referred to as “balsas system”) is known. The Balsas type color wheel device has an optical filter that forms a light-transmitting annular region fixed to an outer peripheral portion of a disk-like support that is pivotally supported by a rotation shaft, and an optical The annular region of the filter is not interrupted by a fixing member such as a holding web.
[0004]
Since the annular region of the optical filter is not interrupted by a fixing member such as a holding web, there are the following advantages. That is, conventionally, a color wheel device in which the annular region of the optical filter is interrupted by a fixing member such as a holding web or spoke is known. In the case of such a conventional device, the annular shape of the optical filter is caused by the holding web or spoke. Since the region is interrupted with a considerable width, the light loss in the interrupted portion is large, and the light transmission efficiency is reduced as a whole. On the other hand, in the Balsace system in which the annular region of the optical filter is not interrupted, optical loss hardly occurs.
[0005]
[Problems to be solved by the invention]
However, such a Balsace type color wheel device has the following problems in that the annular region of the optical filter is not interrupted by a fixing member such as a holding web.
[0006]
That is, the annular region of the optical filter is usually divided into a plurality of regions, and different optical filters are arranged in each of the divided regions. Therefore, in the Balsace system in which the region is not interrupted, there are cases in which a plurality of optical filters are arranged in a state where there is no gap between adjacent ones, that is, in a close contact state. For this reason, the adjacent optical filters are pressed against each other due to rotational force and vibration during driving, or thermal expansion of the optical filter accompanying a temperature change, and the optical filter may be damaged.
[0007]
In order to prevent such damage to the optical filter, the adjacent optical filters may be separated from each other, but the optical loss increases as the separation distance increases. For this reason, it is desirable that the optical filters be separated from each other by a minute distance so that the optical filters adjacent to each other do not adversely affect each other while suppressing optical loss as much as possible. It has been technically difficult to arrange with high accuracy and fix to a support.
[0008]
The present invention has been made in view of such circumstances, and can easily arrange the optical filters adjacent to each other with a small distance apart with high accuracy and reduce the possibility of the optical filter being damaged. However, an object of the present invention is to provide a rotating optical filter device capable of suppressing light loss between optical filters.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, a rotary optical filter device according to the present invention includes a support body having a support surface orthogonal to the rotation axis, and a support body pivotally supported on the rotation axis, and arranged on the support surface in a circumferential direction of the rotation axis. A rotating optical filter device comprising a plurality of optical filters supported, wherein the optical filters are interposed between two adjacent optical filters of the plurality of optical filters in a state of being in contact with both the optical filters. A plurality of optical filters are held between the support surface in a state in which the slits are secured by the partition pieces, and the support body and the plurality of the optical filters are provided. A holding member that is rotated together with the optical filter is provided.
[0010]
The holding member may include a base portion that is perpendicular to the rotation axis and has a hole that is inserted through the rotation shaft.
The holding member may be formed by integrally forming a partition piece and a base portion from a plate-like member, and the partition piece may be formed by bending a part of the plate-like member so as to rise substantially perpendicular to the base portion.
[0011]
The “rotating shaft” means a portion serving as a center of rotation such as a rotor to which a rotational force is transmitted and a shaft portion of a support, and further includes a virtual axis of rotation. In addition, the term “supported by the rotating shaft” means that the shaft is directly supported by a rotation center such as the rotor or the shaft portion of the support, or indirectly through other members. This means that it is supported by a shaft.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a rotating optical filter device according to the present invention will be described below with reference to the drawings. FIG. 1 is a partially broken view showing an outline of a rotating optical filter device according to an embodiment of the present invention, and FIG. 2 is a partial sectional view thereof. In FIG. 2, only the upper half of the entire apparatus shown in FIG. 1 is shown, and the lower half having a symmetric configuration is omitted.
[0013]
The apparatus of this embodiment is, for example, a transmissive color wheel apparatus 1 used in a projection color image display apparatus, and is supported by a rotor 10 to which a rotational force is transmitted from an electric motor (not shown) and the like. The optical filter 30 that decomposes illumination light from a light source (not shown) into light components of various colors and guides the light to an image display element (not shown) and the like, and a holding member 40 that holds the optical filter 30 are provided.
[0014]
The support 20 includes a cylindrical shaft portion 21 that is integrally fixed to the rotor 10, and a disk-shaped support portion 22 that extends from the outer peripheral portion of the shaft portion 21 outward in the radial direction of the axis 11 of the rotor 10. . The support 20 is made of a light metal such as aluminum or an alloy thereof.
[0015]
The optical filter 30 includes three types of illumination light: a red light filter 31 that transmits only a red light component, a green light filter 32 that transmits only a green light component, and a blue light filter 33 that transmits only a blue light component. Has been. Each color filter 31, 32, 33 is made of a glass material, and has a fan-shaped shape in which an annulus is radially divided into three from its center, and is arranged in the circumferential direction of the axis 11. In this state, it is fixed to the support 20 and the holding member 40. The optical characteristics of the filters 31, 32, and 33 are obtained by a generally known method such as forming a dichroic film on the surface that reflects or transmits only one light beam of each of the three primary colors. .
[0016]
FIG. 3 shows the holding member 40 holding the optical filter 30. As shown in FIG. 3 or FIG. 2, the holding member 40 has a radius of the axis 11 in which a hole 41 having an inner diameter substantially equal to the outer diameter of the shaft 21 of the support 20 is formed at the center. A disk-shaped base portion 42 extending outward in the direction is provided, and the hole portion 41 is inserted into the shaft portion 21 of the support body 20 to be supported by the shaft portion 21 of the support body 20 so as to be rotatable about the axis 11. It is configured as follows.
[0017]
In addition, on the outer peripheral portion of the base portion 42, partition wall pieces 43 that are raised substantially perpendicular to the base portion 41 are provided at positions that divide the outer peripheral portion into three equal parts in the circumferential direction. The holding member 40 is formed, for example, by punching and forming the base portion 42 and the partition piece 43 integrally from an aluminum plate having a thickness of 0.1 mm and bending the partition piece 43 substantially perpendicular to the base portion 42. .
[0018]
The partition wall piece 43 is interposed between the circumferential end portions of the adjacent optical filters 30 in a state of being in contact with both end portions, and extends between the two end portions from the radially inner peripheral end to the outer peripheral end. A gap 50 is secured. The minimum interval of the slits 50 is 0.1 mm, which is substantially the same as the plate thickness, and the three optical filters 30 have a separation distance of 0.1 mm between the two adjacent optical filters 30, respectively, in the circumferential direction of the axis 11. In an arrayed state, the holding member 40 and the support 20 are fixed. In addition, it is preferable to set the width | variety of the slit 50 to about 0.4 mm or less which can suppress the influence of optical loss.
[0019]
The optical filter 30 is fixed to the holding member 40 and the support 20 using an epoxy adhesive or the like. Specifically, for example, the holding member 40 is placed on a receiving jig that positions and temporarily holds the optical filter 30 and the holding member 40, and an adhesive is applied to the base 41. The three optical filters 30 and the holding member 40 are bonded to each other by a method in which they are arranged in a circumferential direction on the holding member 40 while being brought into contact with 43 and stacked, and a weight is placed thereon to cure the adhesive. Next, the support 20 is placed on a receiving jig that positions and temporarily holds the holding member 40 and the support 20, an adhesive is applied to the support surface 23 of the support 22, and the optical filter 30 is bonded thereon. The holding members 40 are stacked with the optical filter facing down, and the three optical filters 30 and the support 20 are bonded together by a method of placing a weight thereon and curing the adhesive.
[0020]
By adopting such an adhesion method, each of the two optical filters 30 adjacent to each other of the three optical filters 30 can be arranged with high accuracy in a state where they are separated from each other by a small distance, and can be fixed to the support 20 easily. It can be done.
[0021]
In the color wheel device 1 configured as described above, the support 20, the optical filter 30, and the holding member 40 are integrally rotated by the rotation of the rotor 10, and the illumination light applied to the optical filter 30 from the light source is emitted. It is decomposed into each color light component by time division.
[0022]
Although one embodiment of the rotating optical filter device of the present invention has been described above, the rotating optical filter device of the present invention is not limited to the above-described embodiment, and various modifications can be made.
For example, in the above-described embodiment, the optical filter is fixed to the holding member and the support with an adhesive. However, depending on the material of the optical filter, the holding member, and the support, the optical filter may be fixed by heat fusion or welding. Is also possible.
[0023]
Moreover, the optical filter can also take the aspect fixed to only one of a holding member or a support body. For example, it is possible to fix the optical filter only to the holding member and to press and support the support by a holding member or another pressing member. It is described in detail in the specification relating to the patent application disclosed by the present applicant.
[0024]
Moreover, although the said embodiment is a transmissive | pervious color wheel apparatus, as a rotation optical filter apparatus of this invention, only the light beam of one desired color of each of three primary color lights is applied to three areas corresponding to three primary colors. A reflective color wheel device in which a dichroic film that reflects each of them is formed may be used.
[0025]
Further, in the present invention, the color wheel device is not limited to one in which the region where each primary color light is transmitted or reflected is divided into three equal parts. Any region may be wide or narrow, or a region that transmits or reflects color light other than the three primary colors, for example, white light or color light that is a mixture of two of the three primary colors may be formed. .
[0026]
Further, the application of the rotating optical filter device of the present invention is not limited to the color wheel device. The present invention can also be applied to an apparatus provided with an optical filter that changes other factors such as the brightness of light from a light source instead of decomposing into colored light.
[0027]
【The invention's effect】
As described above, in the rotating optical filter device of the present invention, a plurality of optical filters arranged in the circumferential direction of the rotating shaft have slits formed between two adjacent optical filters by the partition pieces of the holding member. In this state, it is held by the holding member and supported by the support.
[0028]
Therefore, according to the rotating optical filter device of the present invention, by using the holding member, it is possible to easily arrange the optical filters adjacent to each other with a small distance apart with high accuracy. And thereby, it becomes possible to suppress the optical loss between optical filters, reducing the possibility that an optical filter will be damaged.
[Brief description of the drawings]
FIG. 1 is a front view showing a main configuration of a rotating optical filter device according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of the device shown in FIG. Figure [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Color wheel apparatus 10 Rotor 11 Axis 20 Support body 21 Support shaft part 22 Support part 23 Support surface 30 Optical filter 31 Red light filter 32 Green light filter 33 Blue light filter 40 Holding member 41 Hole part 42 Base part 43 Partition piece 50 slit

Claims (3)

回転軸に直交する支持面を有する該回転軸に軸支された支持体と、前記支持面上で前記回転軸の周方向に配列され支持された複数の光学フィルタとを備えた回転光学フィルタ装置において、
前記複数の光学フィルタの相隣接する2つの光学フィルタ間において該両光学フィルタに共に当接した状態で介在し、該両光学フィルタ間に細隙を確保する隔壁片を有すると共に、
前記複数の光学フィルタを、前記細隙が前記隔壁片によって確保された状態で前記支持面との間に保持し、前記支持体および前記複数の光学フィルタと共に回転せしめられる保持部材を備えてなることを特徴とする回転光学フィルタ装置。
A rotating optical filter device comprising: a support body having a support surface orthogonal to the rotation axis and supported by the rotation shaft; and a plurality of optical filters arranged and supported on the support surface in a circumferential direction of the rotation shaft. In
Between the two optical filters adjacent to each other of the plurality of optical filters are interposed in contact with the two optical filters, and has a partition piece for securing a slit between the two optical filters,
The plurality of optical filters are provided between the support surface in a state in which the slits are secured by the partition pieces, and are provided with a holding member that is rotated together with the support and the plurality of optical filters. A rotating optical filter device.
前記保持部材は、前記回転軸に挿通される孔部が形成された、該回転軸に直交する基部を備えていることを特徴とする請求項1記載の回転光学フィルタ装置。The rotating optical filter device according to claim 1, wherein the holding member includes a base portion that is formed with a hole portion that is inserted through the rotating shaft and is orthogonal to the rotating shaft. 前記保持部材は前記隔壁片と前記基部とが一体に板状部材から形成され、前記隔壁片は前記基部に対して略垂直に立ち上がるように前記板状部材の一部が折り曲げられてなることを特徴とする請求項2記載の回転光学フィルタ装置。The holding member is formed by integrally forming the partition piece and the base portion from a plate-like member, and the partition piece is formed by bending a part of the plate-like member so as to rise substantially perpendicular to the base portion. The rotating optical filter device according to claim 2, wherein:
JP2001239465A 2001-08-07 2001-08-07 Rotating optical filter device Expired - Fee Related JP4223203B2 (en)

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JP4117551B2 (en) 2003-06-05 2008-07-16 ミネベア株式会社 Color wheel, manufacturing method thereof, spectroscopic device including the same, and image display device
JP4045579B2 (en) 2003-06-06 2008-02-13 ミネベア株式会社 Color wheel, spectroscopic device including the same, and image display device
JP4556167B2 (en) * 2004-07-30 2010-10-06 ミネベア株式会社 Color wheel
JP4678479B2 (en) 2004-08-06 2011-04-27 ミネベア株式会社 Color wheel
JP2006072015A (en) 2004-09-02 2006-03-16 Minebea Co Ltd Method for fixing color wheel to motor
JP2006071487A (en) 2004-09-02 2006-03-16 Minebea Co Ltd Spectral instrument
JP2006133661A (en) 2004-11-09 2006-05-25 Minebea Co Ltd Color wheel, its manufacturing method and its manufacturing tool
JP4835901B2 (en) 2004-12-06 2011-12-14 ミネベア株式会社 Color wheel and manufacturing method thereof
JP4811634B2 (en) 2004-12-10 2011-11-09 ミネベア株式会社 Spectrometer with color wheel
KR101079601B1 (en) 2004-12-20 2011-11-03 삼성전자주식회사 Color wheel unit and optical engine with the same
JP4831395B2 (en) * 2005-02-10 2011-12-07 ミネベア株式会社 Color wheel and manufacturing method thereof
KR101207192B1 (en) * 2005-04-22 2012-12-03 오를리콘 트레이딩 아크티엔게젤샤프트, 트뤼프바흐 Color wheel comprising self-adjusted segments
KR20190129463A (en) 2018-05-11 2019-11-20 삼성전기주식회사 Lens assembly

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